
Nicolbolas Cage |
1) That pretty much hits the nail on the head. Kazavon built himself up to be a tasty target for all the crusader types, and for the most part did more harm than good to the greater faith of Zon-Kuthon. That's not to say that he didn't have Z-K's favor; he certainly did, but many living Kuthites feel that painting a giant "crusade me" sign on your back is a quick way to get part of the faith wiped out.
2) Laori and Sial are fairly honest with the players. At the start of chapter 5 there's a mention that they've been sending promising, yet inaccurate reports back to the Brotherhood. They don't want the BoB to learn about the Crown of Fangs until they have it in their hands, because otherwise the BoB might send a strike force in. Laori and Sial are interested primarily in the glory that would come with recovering the Crown themselves. They absolutely would try to assuage the fears of PCs, who will likely suspect that the evil characters will inevitably backstab them. In fact, the pair of Kuthites legitimately want to work with the PCs towards the same goal, and make sure the Crown never falls into the wrong hands again.
3) I'm just about to wrap up chapter 4 with my group, but I anticipate my party accepting their offer. They already enjoyed Laori's company in chapter 3 (in part due to nobody in the group having Knowledge: Religion, and thus nobody knowing who or what Zon-Kuthon was), and have a penchant for making deals with unsavory characters to achieve their goals (Devargo, "Glorio"). The best way to make your PCs trust NPCs is to not portray them as overtly nefarious. Laori is a happy-go-lucky elf who just happens to like giving enemies hugs of death, and keeps her torturous sadomasochism mostly to herself. Sial's a grumpy old man who wants those damn kids to get off his lawn, who just so happens to be a high ranking worshipper of the Midnight Lord. Both of these NPCs are out to save Korvosa as their primary goal, and they should try to convince PCs of this.
Hope this helps.